The Cardiac cycle
... Describe the pressure profiles in the left atrium, left ventricle and the aorta for a single cardiac cycle. Explain the origin and indicate the positions of the 1st and 2nd heart sounds. Draw the profile of pressure changes in the external jugular vein, labeling the three component waves. Draw a cla ...
... Describe the pressure profiles in the left atrium, left ventricle and the aorta for a single cardiac cycle. Explain the origin and indicate the positions of the 1st and 2nd heart sounds. Draw the profile of pressure changes in the external jugular vein, labeling the three component waves. Draw a cla ...
The role of electrocardiogram in the diagnosis of dextrocardia with
... young man of the same age group grossly demonstrated the mirror image nature of dextrocardia. In Nigeria, the incidence of dextrocardia is largely unknown but a few cases have been reported [3, 4, 6]. According to a retrospective chart review at Children’s and Women’s Health Centre of British Columb ...
... young man of the same age group grossly demonstrated the mirror image nature of dextrocardia. In Nigeria, the incidence of dextrocardia is largely unknown but a few cases have been reported [3, 4, 6]. According to a retrospective chart review at Children’s and Women’s Health Centre of British Columb ...
TEMPORARY PACING – WHEN AND HOW? DR. R. VIJAYAKUMAR
... Current guidelines from the British Cardiac Society recommend the right internal jugular route as most suitable for the inexperienced operator; this offers the most direct route to the right ventricle, and is associated with the highest success rate and fewest complications. This was also the ...
... Current guidelines from the British Cardiac Society recommend the right internal jugular route as most suitable for the inexperienced operator; this offers the most direct route to the right ventricle, and is associated with the highest success rate and fewest complications. This was also the ...
Heart 2: Chambers
... atria (= entry halls) , and the two inferior chambers are the ventricles (= little bellies). The atria are the receiving chambers, they receive venous blood from systemic and pulmonary circulation and pump it down into the ventricles. The ventricles are the distributing chambers, they pump blood out ...
... atria (= entry halls) , and the two inferior chambers are the ventricles (= little bellies). The atria are the receiving chambers, they receive venous blood from systemic and pulmonary circulation and pump it down into the ventricles. The ventricles are the distributing chambers, they pump blood out ...
The cardiac cycle
... Introduction It is important that the chambers of the heart contract in a coordinated fashion. The sequence of events involved in one heartbeat is called the cardiac cycle. ...
... Introduction It is important that the chambers of the heart contract in a coordinated fashion. The sequence of events involved in one heartbeat is called the cardiac cycle. ...
Ivabradine: Is there a benefit to pure heart rate reduction
... Current Indications European Medicines Agency “Treatment ...
... Current Indications European Medicines Agency “Treatment ...
Shape-based Matching of ECG Recordings
... beat only to beat very strongly in the next, causing a missed R segment. Physicians routinely make diagnosis by a simple visual examination of these ECG waveform. It is common knowledge to physicians that patients with the same disease have similar-looking ECG shape in the relevant channels. Example ...
... beat only to beat very strongly in the next, causing a missed R segment. Physicians routinely make diagnosis by a simple visual examination of these ECG waveform. It is common knowledge to physicians that patients with the same disease have similar-looking ECG shape in the relevant channels. Example ...
The Cardiac Cycle in the Frog Heart
... (ectotherms) with a low metabolic rate at room temperature. The frog heart beats slowly, allowing us to easily observe the mechanical activity of the cardiac cycle. Amphibians can respire through their skin as long as it is kept moist and cool thus supplying the heart with oxygen. The heart will con ...
... (ectotherms) with a low metabolic rate at room temperature. The frog heart beats slowly, allowing us to easily observe the mechanical activity of the cardiac cycle. Amphibians can respire through their skin as long as it is kept moist and cool thus supplying the heart with oxygen. The heart will con ...
Objectives Cardiovascular disease, congestive heart failure (CHF
... apparently relevant biomarkers are investigated (plasma procollagen, neurohumoral factors; imaging of collagen, type of fibrosis and cardiac sympathetic denervation) in hearts with infarction and/or a conduction abnormality (left bundle branch block; known to be corrected by CRT) (WP 2). Similarly, ...
... apparently relevant biomarkers are investigated (plasma procollagen, neurohumoral factors; imaging of collagen, type of fibrosis and cardiac sympathetic denervation) in hearts with infarction and/or a conduction abnormality (left bundle branch block; known to be corrected by CRT) (WP 2). Similarly, ...
Congestive Heart Failure and Cardiomyopathy
... • This test will probably be used to also follow therapy for patients. Studies have shown that better optimization of ACE therapy can be instituted. • It may reduce the need for repeat ECHO’s • Levels rise acutely and decline with effective treatment within hours – the ½ life is 22 minutes in patien ...
... • This test will probably be used to also follow therapy for patients. Studies have shown that better optimization of ACE therapy can be instituted. • It may reduce the need for repeat ECHO’s • Levels rise acutely and decline with effective treatment within hours – the ½ life is 22 minutes in patien ...
Cardiovascular Physiology Powerpoint
... SA node fires spontaneously 90-100 times per minute SA node setting pace since is the fastest AV node fires at 40-50 times per minute If both nodes are suppressed fibers in ventricles by themselves fire only 20-40 times per minute • Artificial pacemaker needed if pace is too slow • Note: – caffeine ...
... SA node fires spontaneously 90-100 times per minute SA node setting pace since is the fastest AV node fires at 40-50 times per minute If both nodes are suppressed fibers in ventricles by themselves fire only 20-40 times per minute • Artificial pacemaker needed if pace is too slow • Note: – caffeine ...
Using risk factors to help in the diagnosis of acute myocardial
... Chief complaint of the patients showed that the most common symptom was chest pain during admission as it was diagnosed in 25% of the people. Among them, 75% had retrosternal pain while 25% suffered from precordial pain. Totally, 44% of the patients with chest pain had a positive response to subling ...
... Chief complaint of the patients showed that the most common symptom was chest pain during admission as it was diagnosed in 25% of the people. Among them, 75% had retrosternal pain while 25% suffered from precordial pain. Totally, 44% of the patients with chest pain had a positive response to subling ...
INCREASING THE SURVIVAL CHANCE:
... sudden condition that is fatal if not treated within a few minutes. Heart attacks and other conditions can cause ventricular fibrillation. In ventricular fibrillation, the electrical signals in the lower part of the heart are uncoordinated and ineffective. Very little blood is pumped from the heart ...
... sudden condition that is fatal if not treated within a few minutes. Heart attacks and other conditions can cause ventricular fibrillation. In ventricular fibrillation, the electrical signals in the lower part of the heart are uncoordinated and ineffective. Very little blood is pumped from the heart ...
Cardiac Troponins
... Advantages: - useful for early diagnosis of MI - Useful for diagnosis reinfarction Disadvantages: Not used for delayed admission ...
... Advantages: - useful for early diagnosis of MI - Useful for diagnosis reinfarction Disadvantages: Not used for delayed admission ...
Circulatory System
... SA node sends out electrical impulse Impulse spreads over the atria, making them contract The impulse then travels to the AV node ...
... SA node sends out electrical impulse Impulse spreads over the atria, making them contract The impulse then travels to the AV node ...
advances in the management of congestive heart failure
... myocardial oxygen use and can worsen ischemia. ...
... myocardial oxygen use and can worsen ischemia. ...
ATRIAL FIBRILLATION
... calcium closes. The ECG shows the repolarizing T wave. Phase 4 is the recover phase. Both the muscle tracing and ECG return to baseline levels. ...
... calcium closes. The ECG shows the repolarizing T wave. Phase 4 is the recover phase. Both the muscle tracing and ECG return to baseline levels. ...
Brugada`s Syndrome
... which has an incomplete right bundle branch block & ST-segment elevations in the anterior precordial leads (Dizon & Zanif, 2014) This EKG abnormality is known as the type -1 Brugada syndrome EKG & combined with an absence of heart abnormalities will give the diagnosis. This type of EKG is linked to ...
... which has an incomplete right bundle branch block & ST-segment elevations in the anterior precordial leads (Dizon & Zanif, 2014) This EKG abnormality is known as the type -1 Brugada syndrome EKG & combined with an absence of heart abnormalities will give the diagnosis. This type of EKG is linked to ...
CORONARY ANGIO CARDIAC CATH & Ablation Procedures
... method of catheter introduction that is not a direct stick ...
... method of catheter introduction that is not a direct stick ...
Right Ventricular Outflow Tract (RVOT) Ventricular Tachycardia (VT
... ventricular tachycardia in pregnancy, if hemodynamics is stable and therapy is necessary, β-blockers are the drug of choice. If at any time VT becomes unstable or if there is evidence of fetal distress, cardioversion should be performed immediately. Here, we report a case of a patient with RVOT VT i ...
... ventricular tachycardia in pregnancy, if hemodynamics is stable and therapy is necessary, β-blockers are the drug of choice. If at any time VT becomes unstable or if there is evidence of fetal distress, cardioversion should be performed immediately. Here, we report a case of a patient with RVOT VT i ...
VCU Emergency Medicine Journal Club To make participants more
... - The study population was approximately 75% insured, and approximately 60% Caucasian. Given that the population is very different than ours, both in terms of risk for cardiac disease and ability to follow up, applicability to VCU’s population may be limited. ...
... - The study population was approximately 75% insured, and approximately 60% Caucasian. Given that the population is very different than ours, both in terms of risk for cardiac disease and ability to follow up, applicability to VCU’s population may be limited. ...
Interesting Case Rounds
... Which Mobitz izit? Mobitz I – block within the AV Node, progressive lengthening of PR interval Mobitz II – block below the AV Node, presumed to be healthy. Most often, QRS is wide. A narrow QRS essentially excludes infra-nodal heart block. Our patient was a perfect 2:1 block with a narrow QRS… har ...
... Which Mobitz izit? Mobitz I – block within the AV Node, progressive lengthening of PR interval Mobitz II – block below the AV Node, presumed to be healthy. Most often, QRS is wide. A narrow QRS essentially excludes infra-nodal heart block. Our patient was a perfect 2:1 block with a narrow QRS… har ...
Biventricular pacing - Health Care Visions, Ltd.
... The most common technique used to insert a biventricular pacemaker is the endocardial transvenous approach. The procedure is usually done in the cardiac catheterization or electrophysiology lab. Physicians see most patients prior to the day of the procedure in the preadmission testing department, wh ...
... The most common technique used to insert a biventricular pacemaker is the endocardial transvenous approach. The procedure is usually done in the cardiac catheterization or electrophysiology lab. Physicians see most patients prior to the day of the procedure in the preadmission testing department, wh ...
Running head: Acute Myocardial Infarction Acute Myocardial
... fever caused by the systemic response to inflammation. Some patients, especially those with diabetes or over age 75, may not experience the classic signs and symptoms of AMI. For example, they may have dyspnea or palpitations rather than chest discomfort. In women, fatigue, jaw pain, back pain, naus ...
... fever caused by the systemic response to inflammation. Some patients, especially those with diabetes or over age 75, may not experience the classic signs and symptoms of AMI. For example, they may have dyspnea or palpitations rather than chest discomfort. In women, fatigue, jaw pain, back pain, naus ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.